Serving California Since 1986

Geotechnical Instrumentation

Eastside Light Rail Transit

Middle Fork Surge Shaft

U-220 University Link

Northeast Interceptor Sewer

Statement of Qualifications

Irvine Torrance San Diego32 Mauchly 370 Amapola Avenue 9245 Activity RoadSuite B Suite 212 Suite 103Irvine, CA 92618 Torrance, CA 90501 San Diego, CA 92126(949) 450-2100 (310) 320-5100 (858) 536-1000

Victorville 12180 Ridgecrest Road Victorville, CA 92395 (760) 881-3224

Ontario 1035 So. Milliken Avenue Suite G Ontario, CA 91761 (909) 295-5550

Oakland1970 Broadway Suite 1100 Oakland, CA 94612 (510) 671-0010

Anaheim1320 South Simpson CircleAnaheim, CA 92806(714) 660-7500

“Delta is the Difference”

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WHO WE ARE

Group Delta Group Delta Consultants, Inc. (Group Delta) has been providing Geotechnical Instrumentation services for contractors, designers and owners for more than 29 years. Group Delta has provided installation and monitoring of the geotechnical instrumentation for the U220 contract for Sound Transit’s University Link Light Rail TBM Tunnels project. Instrumentation includes in-place inclinometers up to 200 feet deep, multi point extensometers up to 300 feet deep, piezometers up to 120 feet deep, utility settlement points, strain gauges, data loggers and fully integrated real time web-based data presentation. Group Delta has been responsible for the geotechnical instrumentation installation for two major tunneling projects, the North Outfall Sewer – East Central Interceptor Sewer (NOS-ECIS) and Northeast Interceptor Sewer (NEIS) in the City of Los Angeles. In addition, we have provided geotechnical instrumentation for Eastside LRT, MOS-1 (Metro Redline) and other projects. Additional project experience is provided in this SOQ. INSTRUMENTATION SERVICES

Group Delta has an excellent relationship with major instrumentation manufacturers and has extensive experience working on major construction sites. Our scope typically includes the labor, equipment, and materials for installation and monitoring of geotechnical instrumentation. We are proficient in all types

of excavation and tunneling instrumentation such as inclinometers, extensometers, strain gauges, and load cells, piezometers, settlement points and data loggers.

Excavation

In Place Inclinometers

Data Logger

Inclinometer Data

Group Delta has extensive experience in data management with the use of data loggers and web-based data acquisition systems and monitoring for automated processing and distribution of data. We are very interested in working with you on your next instrumentation project and would appreciate your reviewing our attached Statement of Qualifications and passing on to others in your organization. If you have any questions or would like additional information please call me at 949-450-2100 or e-mail me at Shahg@groupdelta.com for an immediate response. We look forward to the opportunity to work with you. Sincerely, Group Delta Consultants, Inc.

Shah Ghanbari, PE President

ADDITIONAL SERVICES GROUP DELTA PROVIDES GEOTECHNICAL ENGINEERING AND GEOLOGIC SERVICES

Feasibility studies

Third Party Reviews

Foundation design

Earth Retaining Structures Design

Pavement Design

Earthwork and Grading

Earthquake and Fault Studies

Geologic Hazard Evaluations

Numerical Modeling Analyses

Seismic Design & Hazard Assessments

Hydrogeologic Evaluations

Dewatering

Ground Improvement Analysis & Design

Laboratory Testing

Slope Stability & Landslide Investigation & Mitigation

Instrumentation and Ground Monitoring

Pile Drivability & Load Tests

Seismic Retrofitting Design

Geologic Reconnaissance & Mapping

Geophysical Investigations

Trenching Investigations

ENVIRONMENTAL SERVICES

Phase I Initial Site Assessments (ISAs) / Environmental Site Assessments (ESAs)

Hazardous Materials Management & Industrial Hygiene

Surveys and Investigations

Technical Abatement Specifications and Work Plans

Abatement and Remediation Monitoring Services

Phase II Site Investigations (SIs)

Construction Environmental Compliance

Phase III Site Remediation

Stormwater

FORENSIC SERVICES

Earthquake Damage Assessments: Causation studies and preparation of repair recommendations. Landslide Investigations: Causation studies and/or development of stabilization schemes. Construction Vibrations: Vibration monitoring and geotechnical testing. Dam Investigations Settlement Analyses: Floor level surveys, causation studies and/or preparation of repair

recommendations. Expansive Soils: Subsurface investigations, preparation of repair recommendations. Groundwater: Subsurface investigations, preparation of subsurface drainage recommendation

Tank/Hazardous Materials

Sampling

Hollywood Fault Study

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TESTING AND INSPECTION SERVICES

Group Delta has two materials testing laboratories located in Anaheim and San Diego, California. Our laboratories are licensed as an approved testing facility by various agencies including the Division of the State Architect (DSA), City of Los Angeles, Caltrans, CCRL and AASHTO. In addition, Group Delta’s San Diego laboratory has been awarded accreditation to the technical competence and quality assurance requirements of ISO/IEC 17025:2005 as determined by the Laboratory Accreditation Bureau (L-A-B).

Soils Testing

Classification & Index

Strength Tests

Volumetric Change

Permeability

Compaction

Aggregate/Subgrade

Materials Testing

Asphalt Testing

Concrete Aggregate

Concrete Cylinders

Concrete Beams

Masonry

Masonry Unit Cubes

Masonry Prisms

Grout/Mortar

Dry Pack Blocks

Shotcrete

Batch Plant Inspections

Reinforcing Steel

Structural Steel

Chemical Physical Properties

AWS/CWI Welding

Post-Tensioning

Epoxy Dowels/Drilled in Anchors

Pull Testing

Non Destructive Testing – UT/MT

High Strength Bolting

Fireproofing Inspections and Sampling

Concrete & Masonry Coring and Extraction

Mix Design Reviews & Trial Batched

Fiber Wrap Inspection

Vapor Emissions Testing

Direct Shear, Consolidation & Sand Equivalent Testing

Asphalt & R-Value Testing

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Group Delta meets all the requirements as an approved testing agency with the following local and national accrediting/certification authorities: ISO 17025 AASHTO (American Association of State

Highway and Transportation Officials) ACI (American Concrete Institute) AMRL (AASHTO Materials Reference

Laboratory) ANSI (American National Standards

Institute) APWA (American Public Works

Association) ASNT (American Society of

Nondestructive Testing) ASTM (American Society for Testing

and Materials) AWS/CWI (American Welding

Society/Certified Welding Inspector) California Department of

Transportation (Caltrans) CCRL (Cement and Concrete

Reference Laboratory)

City of Los Angeles DSA (Division of the State Architect) ICBO (International Conference of

Building Officials) NICET (National Institute for Certification

in Engineering Technologies UBC (Uniform Building Code

Inspection

Earthwork Inspection and Testing – Group Delta provides geotechnical observation and testing services for all stages of site grading. Our field compaction testing services are provided by experience soils technicians working under the supervision of licenses professional engineers.

Asphalt Inspection and Testing – Group Delta provides comprehensive asphalt testing and AC Mix Design Services. We are regularly certified by AMRL in our laboratories.

Concrete Inspection and Testing – Group Delta’s concrete inspection and testing staff is re-certified bi-annually by the Cement and Concrete Reference Laboratory (CCRL) and annually by Caltrans. Our ACI certified concrete technicians perform field and batch plan sampling of concrete materials to assure compliance with project specifications.

Specialty Construction Inspection – Group Delta provides experienced special inspectors licensed by the International Code Counsel (ICC) for Sprayed Applied Fireproofing, Structural Masonry, Structural Steel Bolting and Welding, Pre-Stressed Concrete, and Reinforced Concrete. Group Delta can also provide Certified Welding Inspectors (CWI) licensed by the American Welding Society (AWS) and non-destructive testing such as mag-particle and ultra-sonic testing.

Group Delta Technicians & Inspectors hold the following certifications:

ICC Inspection

Masonry

Structural Steel/Welding

Concrete

Fireproofing

Pre-Stressed

Concrete Caltrans Certified

Materials Testing

Soils Testing

Nuclear Gauge Safety

ACI Certified Concrete

Soils City of LA Deputy Inspector

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PROJECT EXPERIENCE

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Project Highlights Group Delta Highlights

Project Information

REGIONAL CONNECTOR TRANSIT CORRIDOR Los Angeles, CA

A 1.9-mile fully underground line will connect the Metro Gold Line, Blue Line and Expo Line and provide three new downtown LA underground subway stations

A massive cut and cover operation is proposed for the construction of the tunnel due to the extensive underground utility lines

Static and dynamic geotechnical recommendations for stations and structures

Geomechanical numerical analyses to study seismic racking behavior of the underground structures

Instrumentation and monitoring provided, analyses conducted to support the development of the building projection plan

Client: Skanska

Owner: Los Angeles MTA

Total Cost: $1.47 Billion

Completed: Ongoing

DESIGN-BUILD

$1.47 BILLION

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Project Highlights Group Delta Highlights

Project Information

SAN GABRIEL TRENCH GRADE SEPARATION San Gabriel, CA

Lowering of 1.4-miles of Union Pacific rail line in a trench through the City of San Gabriel

Will provide vehicles and pedestrians safe crossing over the tracks

Reduction of locomotive horn and crossing bell noise, congestion and air pollution

Eliminate delays for emergency responders and the potential for crossing collisions

Management of hazardous waste and remediation services

Performing air monitoring services

Installed and monitored crack gauges and tilt meters to assess impact of construction on nearby buildings

Installed inclinometers in piles to measure effectiveness of pile construction

Client: The Walsh Company

Owner: Union Pacific Railroad

Total Cost: $340 Million (est.)

Completed: Ongoing

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Project Information

MTA PUPLE LINE EXTENSION Los Angeles, CA

Project extends westward for about 9 miles with 7 new stations

Provides a high-capacity, high-speed, dependable alternative

Includes destinations such as Miracle Mile, Beverly Hills, Century City and Westwood

Installation of Shape-AccelArray inclinometers, tilt meters, load cells, strain gauges, surface, building, and utility monitoring points, piezometers and extensometers.

All data is uploaded to a cloud based server and accessible 24-hours/day. Group Delta will also program in alarms if action level is exceeded.

Client: Skanska/Traylor/

Shea

Owner: MTA

Total Cost: $6.3 Billion

Completed: 2014-Present

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Project Information

EXPOSITION LIGHT RAIL PHASE 2 Los Angeles, CA

15.2-mile light rail line utilizing the exposition corridor with 19 stations

Phase 2 includes 7 new stations along the Westside

The Exposition Light Rail Transit (LRT) to Santa Monica is a significant and long-term public investment in transit, city-wide and regional mobility, and sustainability

Materials evaluation of 1920’s brick arch tunnel under light rail road

Provided geotechnical recommendations for Expo LRT stations

Provided instrumentation and monitoring for Multiple Mechanical Stabilized Earth (MSE) light rail walls analyses

Client: Parsons Brinckerhoff/ Skanska – Rados JV

Owner: Los Angeles MTA

Total Cost: $1.5 Billion

Completed: On-going

DESIGN-BUILD

$1.5 BILLION

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Project Information

BRIGHTWATER EAST TUNNEL Bothell, Washington

Wastewater Conveyance System that includes the East Tunnel, Central Tunnel and West Tunnel Totaling 13 miles of conveyance in King County

East Tunnel consists of 14,050 ft. of precast concrete segmentally-lined tunnel with an inside diameter of 16 ft.

Provided geotechnical instrumentation installation

Instrumentation included observation wells, piezometers, three point rod extensometer and inclinometers.

Instrumentation for tunnel included four pipes and three fiber optic cables, launch and receiving shafts, and pump station

Client: Kenny/Shea/

Traylor

Owner: King County

Total Cost: $705 Million

Completed: 2010

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Project Information

UNIVERSITY LINK Seattle, Washington

University Link is a 3.15 mile light rail extension running in twin bored tunnels from downtown Seattle north to the University of Washington

Stations located at Capitol Hill and on University of Washington Campus near Husky Stadium

Provided geotechnical instrumentation for tunnels and University Station

Instrumentation monitors soil and groundwater movements around University and along alignments of both rail tunnels

In-place inclinometers up to 200 ft. deep, multipoint extensometers up to 300 ft. deep and piezometers up to 120 feet deep

Client: Traylor/Frontier/

Kemper

Owner: Sound Transit

Total Cost: $1.9 Billion

Completed: 2016

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Project Information

SAN GABRIEL TRENCH GRADE SEPARATION San Gabriel , California

The 2.2 mile grade separation will result in lowering of a 1.4 mile section of Union Pacific Railroad track into a trench through the City of San Gabriel

Bridges constructed at Ramona Street, Mission Road, Del Mar Avenue and San Gabriel Boulevard allowing vehicles and pedestrians to pass over the tracks

Providing geotechnical instrumentation that includes traversing probe inclinometers, in-place inclinometers, tiltmeters and crack gauges

Tiltmeters and in-place inclinometers are monitored with systems of remotely monitored data loggers. Data is posted on the web based data management system

Client: The Walsh Group

Owner: Alameda Corridor East

Total Cost: $336 Million

Completed: 2017

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Project Information

NORTHEAST INTERCEPTOR SEWER (NEIS) Los Angeles, Califoria

Major sewer tunnel 8.5 km long extending from the terminus of the ECIS sewer

Corridor located within the densely developed and populated area of the city

Built to provide downstream outlet for the Eagle Rock Interceptor Sewer (ERIS)

Project accomplished by tunneling with Earth Pressure Balance method

Provided geotechnical instrumentation that included installation of 23 multi-point extensometers, 24 inclinometers, 220 borros type settlement points and 12 piezometers

Tiltmeters were installed at critical historic bridge structures and buildings

Client: Kenny/Shea/

Traylor/Frontier

Owner: County of Los Angeles

Total Cost: $1.5 Million

Completed: 2004

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Project Information

MIDDLE FORK SURGE SHAFT Foresthill, California

17-kilometer long tunnel is a hydro-power/water pressure tunnel

Tunnel has a 10 ft. diameter, 600 ft. deep surge shaft at the tunnel downstream, located in a remote area of the Sierra Mountains

Project was to prevent leakage by placing an 8 ft. diameter steel liners inside the existing surge shaft and filling with concrete

Provided instrumentation that included 72 strain gauges, 6 piezometers and 4 load cells

Monitored the steel liner movement after installation

Monitored change of water level in the annulus and verified that the leakage of the surge shaft had stopped

Client: Kiewit Pacific

Owner: City of Forethill

Total Cost: Unknown

Completed: 2008

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JOINT OUTFALL “C” RELIEF TRUNK SEWER Los Angeles County, California

Project consists of installation of a 5,600 ft. long 90 inch diameter lined Rubber Gasketed Reinforced Concrete (RFRC) pipe in the cities of Los Angeles and Carson

Pipe was installed via a tunneling method

Installed 22 two-point extensometers with fiberglass rods at 7 ft. below ground surface and 5 ft. above crown of the tunnel

All Data was monitored via data loggers installed inside the extensometer traffic boxes. Data was collected via cell phone modem data line and transmitted from the data logger to Group Delta’s office via an antenna

Client: Rasic Construction

Owner: Los Angeles County Sanitation District

Completed: 2010

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EASTSIDE LIGHT RAIL TRANSIT Los Angeles, California

Eastside LRT is a southeasterly extension of the Pasadena Gold Line

Project consists of at-grade alignment, four existing bridges and one 456 ft. long new bridge across US 101 and a tunnel section

Passes through the cities of Los Angeles and East Los Angeles and is 5.8 miles long

Provided geotechnical instrumentation installation that included borehole extensometers, inclinometers, tape extensometers, strain gauges, over 1,000 building and ground settlement reference points, observation wells and data loggers

Provided investigation, foundation recommendation and seismic design

Client: Metropolitan Transit Authoriity

Owner: Metropolitan Transit Authority

Completed: 2003

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Project Information

EAST CENTRAL INTERCEPTOR SEWER (ECIS) Los Angeles, California

ECIS is a major sewer tunnel approximately 11.5 miles long with an 11 ft. inside diameter pipe

Corridor is located in a densely developed area within central and southern sections of the city

Project constructed in soft ground conditions in primarily alluvial soil conditions

Installed 270 milti-point extensometers, 19 inclinometers and 8 observation wells

Responsibilities included initial readings of each instrument before turning instruments over to the City of Los Angeles for monitoring

Responsible for instrumentation of shaft excavation struts with strain gauges and monitoring stresses on the struts

Client: Kenny/Shea/

Traylor/Fontier

Owner: County of Los Angeles

Total Cost: $1.3 Million

Completed: 2003